WO2024061133A1

WO2024061133A1 - Communication method, apparatus, ue, and readable storage medium

Info

Publication number: WO2024061133A1
Application number: PCT/CN2023/119192
Authority: WO
Inventors: 程思涵; 孙彦良; 余士杰; 刘辉
Original assignee: 维沃移动通信有限公司
Priority date: 2022-09-22
Filing date: 2023-09-15
Publication date: 2024-03-28
Also published as: CN117793064A

Abstract

A communication method, an apparatus, a UE, and a readable storage medium. The communication method comprises: after communication of a first multimedia subsystem (IMS) service between a first user equipment (UE) and a second UE is finished, the first UE initiating a session release process when a first condition is met, the session release process being used for releasing a first session, and the first session being used for transmitting the first IMS service; and, after the session release process is completed, initiating a session establishment process and an IMS registration process, the session establishment process being used for establishing a second session, and the second session being used for transmitting a second IMS service.

Description

Communication method, device, UE and readable storage medium

Cross-references to related applications

This application claims priority to the Chinese patent application number 202211160869.3 filed in China on September 22, 2022, the entire content of which is incorporated herein by reference.

Technical field

This application belongs to the field of communication technology, and specifically relates to a communication method, device, UE and readable storage medium.

Background technique

In the existing technology, during the communication process between UE1 and UE 2 for Internet Protocol (IP) multimedia subsystem (IP Multimedia Subsystem, IMS) service (for example, voice call service or video call service), the network side device will Establish dedicated bearers for transmitting IMS services for UE1 and UE2 respectively, such as 5G Quality of Service flow (QoS flow) or 4G Evolved Packet System bearer (EPS bearer).

If the user of UE1 or UE2 ends the communication of the IMS service, UE1 or UE2 will send a Session Initiation Protocol (SIP) Goodbye (Bye) message, and the network side device will delete the Bye message sent by the UE for transmission. Dedicated bearer for IMS services.

However, when UE1 or UE2 ends the communication of the IMS service, due to an error in the network side equipment, the dedicated bearer used to transmit the IMS service cannot be successfully deleted, which will cause subsequent UE1 or UE2 to initiate or receive a request to establish the IMS service. , the problem of failure to successfully establish a dedicated bearer for transmitting the IMS service.

In this way, the IMS service of UE1 or UE2 will not be successfully established, affecting user experience.

Contents of the invention

Embodiments of the present application provide a communication method that can solve the problem that the user's IMS service communication function cannot be used normally due to the inability to delete a dedicated bearer used to transmit IMS services.

In a first aspect, a communication method is provided, which is applied to a UE. The method includes: after the communication of the first multimedia subsystem IMS service between the first UE and the second UE ends, and when the first condition is met, The above-mentioned first UE initiates a session release process, which is used to release the first session, and the first session is used to transmit the above-mentioned first IMS service; after the above-mentioned session release process is completed, a session establishment process and an IMS registration process are initiated, The session establishment process is used to establish a second session, and the second session is used to transmit the second IMS service.

In a second aspect, a voice communication device is provided. The device includes: a processing module configured to: after the communication of the first IMS service between the first UE and the second UE ends, when the first condition is satisfied. In this case, the above-mentioned first UE initiates a session release process. The session release process is used to release the first session. The first session is used to transmit the above-mentioned first IMS service; the processing module is also used to: after the above-mentioned session release process is completed, , initiating a session establishment process and an IMS registration process. The session establishment process is used to establish a second session, and the second session is used to transmit the second IMS service.

In a third aspect, a terminal is provided. The terminal includes a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect.

In a fourth aspect, a terminal is provided, including a communication interface, wherein the communication interface is configured to initiate, after the communication of the first IMS service between the first UE and the second UE ends, when the first condition is met. Session release process, the session release process is used to release the first session, the first session is used to transmit the above-mentioned first IMS service; after the above-mentioned session release process is completed, initiate the session establishment process and IMS registration process, the session establishment process uses After establishing the second session, the second session is used to transmit the second IMS service.

In a fifth aspect, a communication system is provided, including: a terminal and a network side device. The terminal can be used to perform the steps of the communication method described in the first aspect.

In a sixth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented.

In a seventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the method described in the first aspect. .

In an eighth aspect, a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the method described in the first aspect Steps of communication method.

In this embodiment of the present application, after the communication of the first IMS service between the first UE and the second UE ends, and if the first condition is met, the above-mentioned first UE initiates a session release process. The session release process is used to release The first session is used to transmit the above-mentioned first IMS service; after the above-mentioned session release process is completed, a session establishment process and an IMS registration process are initiated. The session establishment process is used to establish a second session. The second session uses For transmitting the second IMS service. In this way, after the first UE and the second UE end the IMS service, the first session between the first UE and the second UE is released when the first condition is met, so that the IMS service correspondence is not successfully deleted. When the dedicated bearer is used, the first UE can successfully establish a new session and IMS registration during the next call.

Description of drawings

Figure 1 is a possible structural schematic diagram of a communication system involved in an embodiment of the present invention;

Figure 2 is a schematic diagram of the IMS service flow of a communication method provided by an embodiment of the present application;

FIG3 is a schematic diagram of a process flow of terminating an IMS service in a communication method provided in an embodiment of the present application;

Figure 4 is one of the flow diagrams of a communication method provided by an embodiment of the present application;

Figure 5 is a second schematic flowchart of a communication method provided by an embodiment of the present application;

Figure 6 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

Figure 7 is a schematic diagram of the hardware structure of a communication device provided by an embodiment of the present application;

Figure 8 is a schematic diagram of the hardware structure of a terminal provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and "second" are distinguished objects It is usually one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship. The term "instruction" in the description and claims of this application can be either an explicit instruction or an implicit instruction. Among them, explicit instructions can be understood as the sender clearly informs the receiver of the operations or request results that need to be performed in the instructions sent; implicit instructions can be understood as the receiver makes judgments based on the instructions sent by the sender, and based on the judgment The result determines the action that needs to be performed or the result of the request.

It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE)/LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned systems and radio technologies as well as other systems and radio technologies. The following description describes a new radio (NR) system for example purposes, and NR terms are used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the ^6th Generation (6G) communication system.

Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer. (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (AR)/virtual reality (VR) equipment, robots, wearable devices (Wearable Device) , vehicle-mounted equipment (VUE), pedestrian terminal (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (PC), teller machines or self-service Machines and other terminal side equipment can be worn Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. . In addition to the above terminal equipment, it can also be a chip within the terminal, such as a modem chip or a system on chip (SoC). It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side device 12 may include an access network device or a core network device, where the access network device 12 may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or Wireless access network unit. The access network device 12 may include a base station, a WLAN access point or a WiFi node, etc. The base station may be called a Node B, an evolved Node B (eNB), an access point, a Base Transceiver Station (BTS), a radio Base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B, Home Evolved Node B, Transmitting Receiving Point (TRP) or all Some other appropriate terminology in the above fields, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only the base station in the NR system is used as an example for introduction, and The specific type of base station is not limited. The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (Mobility Management Entity, MME), access mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Service Discovery function (Edge Application Server Discovery Function, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), centralized network configuration ( Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiment of this application, only the core network equipment in the NR system is used as an example for introduction, and the specific type of the core network equipment is not limited.

In the existing technology, during the communication process of UE1 and UE2 for IMS services (for example, voice call service or video call service), the network side device will establish dedicated bearers for transmitting IMS services for UE1 and UE2 respectively, such as 5G QoS flow or 4G EPS bearer. If the user of UE1 or UE2 ends the communication of the IMS service, UE1 or UE2 will send a SIP Bye message, and the network side device will delete the dedicated bearer used to transmit the IMS service according to the Bye message sent by the UE.

The following takes UE-1 as the called party, UE-2 as the calling party, and the voice call service as an example to illustrate the process of establishing voice communication. Specifically, it includes the following steps 1 to 15.

As shown in Figure 2, the equipment ending with -1 in Figure 2 is the core network equipment that provides services for UE-1; in Figure 2 The device ending in -2 is the core network device that provides services for UE-2.

Step 1. UE-1 establishes a Protocol Data Unit (PDU) session for transmitting multimedia subsystem (IP Multimedia Subsystem, IMS) services.

Optionally, the Data Network Name (DNN) corresponding to the PDU session is IMS.

Optionally, the PDU session is used to transmit data and/or signaling of the IMS service.

Step 2. UE-2 initiates an IMS session establishment request through a SIP invite message, and carries the information of the voice media to be established in the session description protocol (SDP) of the request.

Examples of SDP proposals are as follows:
m＝audio 49152RTP/AVP 97 98
a＝rtpmap:97EVS/16000/1

The request is sent to the proxy call session control function serving UE-1 through the serving call session control function (S-CSCF) serving UE-2 and the S-CSCF serving UE-1. (Proxy call session Control function, P-CSCF).

It should be noted that the P-CSCF that provides services for UE-2 is omitted and not shown.

Step 3. P-CSCF-1 sends the invite message to UE-1.

Step 4. UE-1 replies to the SIP 183 message, which contains the SDP answer (answer).

It should be noted that SDP offer and SDP answer are used to negotiate information such as the voice encoding method used for this call.

Step 5. P-CSCF sends the media description information negotiated through SDP to the centralized coordination function (Point Coordination Function, PCF) that provides services for UE-1. The media description information is obtained according to the SDP answer message.

Step 6. PCF sends a request to the Session Management Function (SMF) providing services for UE-1 to establish a dedicated bearer for transmitting IMS voice services, and carries the QoS parameters of the dedicated bearer to be established in the request. The bearer can be a QoS flow.

Step 7 - Step 11. The SMF determines that the request is used to establish a dedicated bearer and initiates the dedicated bearer, that is, the establishment process of QoS flow with 5G QoS Identifier (5QI) = 1.

It should be noted that 5QI is used to identify the QoS service level in the 5G system, and its corresponding 4G concept is QoS Class Identifier (QCI).

Step 12. SMF sends a confirmation message to PCF.

Step 13. PCF sends a confirmation message to P-CSCF.

Step 14. P-CSCF determines that the dedicated bearer has been established based on the message in Step 13, and sends a 183 message to UE-2 through S-CSCF, carrying the SDP answer of UE-1.

It should be noted that after receiving the SDP answer, the P-CSCF of UE-2 establishes the IMS transmission for UE-2. A dedicated bearer for voice services, which can be a QoS flow.

Step 15. When the user of UE-1 answers the incoming call, UE-1 sends 200OK. UE-2 determines that the user of UE-1 answers the incoming call based on 200OK and starts the call.

The following takes UE-2 hanging up the call as an example to illustrate the process of deleting the dedicated bearer after hanging up the call. Specifically, it includes the following steps 1 to 13 as shown in Figure 3.

Step 1. A voice call has been established between UE-1 and UE-2.

Step 2. UE-2 hangs up the phone, and UE-2 sends a Bye message to UE-1.

Step 3. P-CSCF-1 sends a Bye message to UE-1.

Step 4. P-CSCF-1 sends a delete command to PCF-1.

Step 5. PCF sends a delete command to SMF.

Step 6 - Step 10. SMF initiates a PDU session modification command to delete the voice-specific QoS flow.

Step 11-Step 12. Reply to confirm.

It should be noted that steps 3 and 4 are in no particular order.

Step 13. UE-1 sends 200OK to confirm the Bye message.

Based on the above situation, if a network error occurs when UE-1 or UE-2 hangs up the phone, the deletion of the dedicated bearer is not completed. For example, in Figure 3, any problem in step 4 to step 12 will cause the deletion of the dedicated bearer to fail. Since the network side equipment can only establish one dedicated bearer for the voice service for UE, when UE-1 subsequently initiates or receives a voice call, the network side equipment will refuse to establish a dedicated bearer for UE-1 again, resulting in UE-1 being unable to make calls. Or receive calls, affecting user experience.

For example, in Figure 2, when P-CSCF-1 receives the SDP answer and sends step 5 to PCF, it will receive a message from PCF refusing to establish a dedicated bearer. P-CSCF-1 sends a Cancel (Cancel) message to UE-1. ) message, the Cancel message is used to cancel the call request sent in step 3. It should be noted that the Cancel message can carry the reason value: insufficient resources (insufficient bearer resource). Then, SMF-1 will further initiate a PDU session modification command (PDU session modification command) to the UE to delete the voice dedicated bearer request. However, due to an error on the network side, the deletion process cannot be completed normally. Alternatively, UE-1 may further initiate a request to delete the voice-dedicated bearer, but due to an error on the network side, the deletion process cannot be completed normally. Finally, when UE-1 initiates or receives a voice call, the network side device will refuse to establish the voice-dedicated bearer for UE-1 again, making UE-1 unable to communicate normally.

In this embodiment of the present application, after the communication of the first IMS service (for example, voice communication) between the first UE and the second UE ends, and if the first condition is met, the first UE initiates a session release process, The session release process is used to release the first session, and the first session is used to transmit the above-mentioned first IMS service; after the above-mentioned session release process is completed, a session establishment process and an IMS registration process are initiated, and the session establishment process is used to establish a second session. session, the second session is used to transmit the second IMS service. In this way, after the first UE and the second UE end the IMS service, the first session between the first UE and the second UE is released when the first condition is met, so that the IMS service correspondence is not successfully deleted. When using a dedicated bearer, the first UE can call New session and IMS registration successfully established.

Optionally, the first session is used to transmit the first IMS service, which can be understood as: the first session is used to transmit data and/or signaling of the first IMS service; or the first session corresponds to the IMS service. Taking the voice service as an example, the first session is used to transmit data and/or signaling of the voice service.

Optionally, the second session is used to transmit the second IMS service, which can be understood as: the second session is used to transmit data and/or signaling of the second IMS service; or the second session corresponds to the IMS service. Taking the voice service as an example, the second session is used to transmit data and/or signaling of the voice service.

Optionally, the end of the call between the first UE and the second UE for the first IMS service can be understood as: the end of the IMS session corresponding to the first IMS service; or, the end of the first IMS call between the first UE and the second UE. The call corresponding to the service ends. Taking the voice service as an example, the end of the call of the first IMS service between the first UE and the second UE can be understood as the end of the voice call between the first UE and the second UE.

The communication method, device, terminal and readable storage medium provided by the embodiments of the present application will be described in detail through some embodiments and application scenarios with reference to the accompanying drawings.

Figure 4 shows a schematic flowchart of a communication method provided by an embodiment of the present application. As shown in Figure 5, the resource configuration method may include the following steps 201 and 202:

Step 201: After the communication of the first multimedia subsystem (IMS) service between the first UE and the second UE ends, and if the first condition is met, the first UE initiates a session release process.

In this embodiment of the present application, the above session release process is used to release the first session.

In this embodiment of the present application, the above-mentioned IMS service includes at least one of the following:

IMS voice call service;

IMS video call service.

In this embodiment of the present application, the above-mentioned first session is used to transmit the first IMS service. For example, transmitting IMS services between the first UE and the second UE.

For example, the above-mentioned transmission of the first IMS service may be used to transmit data and/or signaling of the IMS service.

Exemplarily, the above-mentioned first session includes at least one of the following: PDU session; Packet Data Network (PDN) connection.

Step 202: After the above session release process is completed, the first UE initiates a session establishment process and an IMS registration process, where the session establishment process is used to establish a second session.

In the embodiment of the present application, the second session is used to transmit a second IMS service, for example, to transmit an IMS service between the first UE and the second UE or other UEs.

Illustratively, the above session establishment process includes a session establishment request, and the request includes IMS data network name (Data Network Name, DNN) information, which is used to indicate the establishment of a session for transmitting IMS services.

In the communication method provided by the embodiment of the present application, after the communication of the first IMS service between the first UE and the second UE ends, and when the first condition is met, the first UE initiates a session release process, and the session release process The process is used to release the first session, which is used to transmit the above-mentioned first IMS service; after the above-mentioned session release process is completed, a session establishment process and an IMS registration process are initiated, and the session establishment process is used to establish a second session. The second session is used to transmit the second IMS service. In this way, after the first UE and the second UE end the IMS service, the first session between the first UE and the second UE is released when the first condition is met, so that the IMS service correspondence is not successfully deleted. When the dedicated bearer is used, the first UE can successfully establish a new session and IMS registration during the next call.

Optionally, in the embodiment of this application, the above-mentioned first condition includes (i.e., the following 1) to 8)) at least one of the following:

1) After the first UE sends the first goodbye (Bye) message, the session modification command is not received.

Illustratively, the first goodbye message is used to end the communication of the first IMS service between the first UE and the second UE.

For example, the session modification command is not received within the first period of time after the first UE sends the first goodbye message.

For example, the first time period may be a user-defined time period, or may be a system default predetermined time period.

2) After the first UE receives the second goodbye message sent by the second UE, the session modification command is not received.

Illustratively, the second goodbye message is used to end the communication of the first IMS service between the first UE and the second UE.

For example, the session modification command is not received within the second time period after the first UE receives the second goodbye message sent by the second UE.

For example, the above-mentioned second time period may be customized by the user, or may be a system default predetermined time period.

In this way, when the first UE does not receive the session modification command within the predetermined time period for ending the call, the first UE can directly release the session, so that the first UE can successfully establish a new session.

3) After the first UE sends the session modification request, a rejection message sent by the network side device, such as SMF, is received.

Illustratively, the above rejection message is used to reject session modification. For example, the rejection message may be a PDU session modification reject message.

Exemplarily, the reason value included in the rejection message is a first value; the first value is used to indicate the reason for rejecting the session modification request. Further optionally, the first value may include: 31: unspecified request rejection (request reject, unspecified); 84: syntactical error in the QoS operation (syntactical error in the QoS operation).

4) The first UE detects that the session modification command sent by the network side device is incorrect.

For example, the error in the session modification command may include: the first UE detects that the session modification command does not include QoS rule information corresponding to the dedicated bearer used to transmit IMS services in the first session.

Taking the voice service as an example, the UE detects that the session modification hit only contains the information of the dedicated QoS flow corresponding to the voice service, but does not include the information of the QoS rule corresponding to the voice service.

5) When the above-mentioned first UE sends an IMS service request to the third UE, there is a dedicated bearer for transmitting the above-mentioned IMS service.

For example, when the first UE determines that there is a data radio bearer (Data Radio Bearer, DRB) used to transmit the above IMS service, it determines a dedicated bearer used to transmit the above IMS service.

For example, when the first UE receives a Radio Resource Control (RRC) reconfiguration (Reconfiguration) message sent by the base station, it is determined according to the content of the RRC reconfiguration message that a DRB for transmitting the above IMS service exists. For example, based on the number of DRBs, when the number of DRBs corresponding to the first PDU session is 1, it is determined that there is no dedicated bearer for transmitting the above IMS service; when the number of DRBs corresponding to the first PDU session is greater than or equal to 2 At this time, it is determined that a dedicated bearer for transmitting the above IMS service exists.

For example, when the first UE sends an IMS service request to the third UE, it can be understood that the first UE is preparing or is about to send an IMS service request to the third UE.

6) When the first UE receives the IMS service request sent by the fourth UE, there is a dedicated bearer for transmitting the IMS service.

For example, when the first UE determines that there is a data radio bearer for transmitting the above IMS service, it determines a dedicated bearer for transmitting the above IMS service.

For example, the first UE can determine whether there is a dedicated bearer for transmitting the IMS service at any time point after the communication of the IMS service with the second UE ends. For example, when the UE enters the connected state from the idle state, according to the received The content of the RRC Reconfiguration message sent to the base station determines whether there is a DRB used to transmit the above IMS services. For example, judge based on the number of DRBs.

In this way, when the UE detects that there is still a dedicated bearer for transmitting IMS services before establishing a new session, it can proactively release the session so that the UE can establish a new session.

7) After the first UE sends the IMS service request to the fifth UE, the first UE receives a response message indicating an error.

For example, the above-mentioned response message for indicating an error is a first message, and the first message may be: a 503 message, a 502 message, or a 504 message. Further, the first message may include information about insufficient bearer resources.

8) After the first UE receives the IMS service request sent by the sixth UE, the first UE receives the call cancellation message.

For example, the call cancel message may include insufficient bearer resources. bearer resource)

Illustratively, the session modification command is used to delete the dedicated bearer used to transmit the IMS service in the first session.

Illustratively, the session modification request is used to delete the dedicated bearer used to transmit the IMS service in the first session.

Optionally, in this embodiment of the present application, the above-mentioned bearer includes at least one of the following: QoS flow; EPS bearer.

In one example, regarding the above 7), after the first UE sends the IMS service request to the fifth UE, the first UE receives a response message indicating an error and a session modification command.

Exemplarily, the session modification command is used to delete a dedicated bearer used to transmit the IMS service in the first session.

Optionally, in this embodiment of the present application, after the above-mentioned first UE sends an IMS service request to the fifth UE, the process of the first UE receiving a response message indicating an error occurs M times, where M is a positive integer.

It should be noted that the above-mentioned first UE will send M call request messages, and accordingly, will also receive M response messages indicating errors.

In one example, regarding the above 8), after the first UE receives the IMS service request sent by the sixth UE, the first UE receives the call cancellation message and the session modification command.

Illustratively, the above session modification command is used to delete the dedicated bearer used to transmit the above IMS service in the first session.

Optionally, in this embodiment of the present application, after the first UE receives the IMS service request sent by the sixth UE, the process of receiving the call cancellation message occurs N times, where N is a positive integer.

It should be noted that the above-mentioned first UE will send N call request messages, and accordingly, will also receive N call cancellation messages.

It should be noted that the above-mentioned second to sixth UEs may be the same or different.

In this way, after the last call ends, if the dedicated bearer corresponding to the IMS service cannot be successfully deleted, a session release request can be sent to release the session that ended the last call, and then a new session can be established and IMS registered.

The following takes a call scenario between UE1 and UE2 as an example to illustrate the communication method provided by the embodiment of the present application.

Illustratively, as shown in Figure 5, the communication method provided by the embodiment of this application includes the following S1 to S8:

S1: UE1 determines whether one or more of the following conditions are met.

Specifically, the above conditions include (1) to (8):

(1) When UE1 is the called UE, UE1 receives a cancel message after receiving the call request (invite) message.

(2) When UE1 is the calling UE, after sending the Invite message, UE1 receives the 503 message (ie, the above-mentioned first message).

(3) When the last successfully established call ends, when UE2 hangs up the call, UE1 does not receive the PDU session modification command for deleting the session-specific bearer after receiving the Bye message; or, when UE1 hangs up the call, In this case, after sending the Bye message, UE1 did not receive the PDU session modification command for deleting the session-specific bearer.

(4) After receiving the cancel message, UE1 also receives the PDU session modification command for deleting the session-specific bearer.

(5) After receiving the 503 message, UE1 also receives the PDU session modification command for deleting the session-specific bearer.

(6) When UE1 actively initiates a PDU session modification request to delete the session-specific bearer, the request is rejected, and the PDU session modification reject message is received.

(7) UE1 determines that the PDU session modification command received for deleting the session-specific bearer is incorrect.

(8) When the UE determines that there is still a dedicated bearer corresponding to the IMS service when initiating or receiving the Invite message.

S2 to S4. When UE1 determines that the conditions are met, it initiates a release PDU session request. Among them, the PDU session is used to transmit IMS signaling and data.

S5 to S6. After the IMS PDU session is released, the PDU session establishment request is re-initiated.

S7 to S8.UE1 complete IMS registration.

In this way, the UE can actively initiate a session release request when the conditions are met, so that the session establishment request and IMS registration request can be re-initiated after the session release is completed.

The communication method provided in the embodiment of the present application can be executed by voice communication. In the embodiment of the present application, the communication method is executed by voice communication as an example to illustrate the communication method provided in the embodiment of the present application.

An embodiment of the present application provides a communication device 700. As shown in Figure 6, the communication device 700 includes: a processing module 701; the processing module 701 is used to complete the communication of the first IMS service between the first UE and the second UE. Finally, when the first condition is met, initiate a session release process, which is used to release the first session, which is used to transmit the first IMS service; the above-mentioned processing module 701 is also used to perform the above-mentioned After the session release process is completed, a session establishment process and an IMS registration process are initiated. The above session establishment process is used to establish a second session, and the second session is used to transmit the second IMS service.

Optionally, in the embodiment of the present application, the first condition includes at least one of the following:

After the first UE sends the first goodbye message, the session modification command is not received, and the first good-bye message is used to end the communication of the first IMS service between the first UE and the second UE;

After the first UE receives the second goodbye message sent by the second UE and does not receive the session modification command, the second goodbye message is used to end the first IMS service between the first UE and the second UE. communication;

After the first UE sends the session modification request, a rejection message sent by the network side device is received, and the rejection message is used to reject the session modification;

The above-mentioned first UE detects that the session modification command sent by the above-mentioned network side device is incorrect;

When the above-mentioned first UE sends an IMS service request to the third UE, there is a dedicated bearer for transmitting the above-mentioned IMS service;

When the above-mentioned first UE receives the IMS service request sent by the fourth UE, there is a dedicated bearer for transmitting the above-mentioned IMS service;

After the first UE sends an IMS service request to the fifth UE, the first UE receives a response message indicating an error;

After the first UE receives the IMS service request sent by the sixth UE, the first UE receives the call cancellation message;

The session modification command is used to delete the dedicated bearer used to transmit the IMS service in the first session; the session modification request is used to delete the dedicated bearer used to transmit the IMS service in the first session.

Optionally, in an embodiment of the present application, after the first UE sends the first goodbye message, no session modification command is received, including: no session modification command is received within a first time period after the first UE sends the first goodbye message.

Optionally, in this embodiment of the present application, after the first UE receives the second goodbye message sent by the second UE, the session modification command is not received, including: after the first UE receives the second goodbye message sent by the second UE, No session modification command is received within a second time period after the second goodbye message is sent.

Optionally, in this embodiment of the present application, the reason value contained in the above-mentioned rejection message is a first value, and the first value is used to indicate the reason for rejecting the above-mentioned session modification request.

Optionally, in this embodiment of the present application, the first UE detects that the session modification command sent by the network side device is incorrect, including: the first UE detects that the session modification command does not include the session modification command used in the first session. QoS rule information corresponding to the dedicated bearer of the above IMS service is transmitted.

Optionally, in this embodiment of the present application, the existence of a dedicated bearer for transmitting the above IMS service includes: the existence of a data radio bearer for transmitting the above IMS service.

Optionally, in this embodiment of the present application, the above-mentioned response message for indicating an error is a first message, and the above-mentioned first message contains information about insufficient bearer resources.

Optionally, in this embodiment of the present application, after the first UE sends an IMS service request to the fifth UE, the first UE receives a response message indicating an error, including: the first UE sends an IMS service request to the fifth UE. After the UE sends the IMS service request, the first UE receives a response message indicating an error and a session modification command. The session modification command is used to delete the dedicated bearer used to transmit the IMS service in the first session.

Optionally, in this embodiment of the present application, after the first UE sends an IMS service request to the fifth UE, the first UE receives a response message indicating an error, which further includes: After the fifth UE sends the IMS service request, the process of receiving the response message indicating an error by the first UE occurs M times, where M is a positive integer.

Optionally, in this embodiment of the present application, after the first UE receives the IMS service request sent by the sixth UE, the first UE receives the call cancellation message, which further includes: the first UE receives the sixth call cancellation message. After the UE sends the IMS service request, the first UE receives a call cancellation message and a session modification command. The session modification command is used to delete the dedicated bearer used to transmit the IMS service in the first session.

Optionally, in this embodiment of the present application, after the first UE receives the IMS service request sent by the sixth UE, the first UE receives the call cancellation message, which further includes: the first UE receives the sixth call cancellation message. After the UE sends the IMS service request, the process of receiving the call cancellation message occurs N times, where N is a positive integer.

The communication method in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip. The electronic device may be a terminal or other devices other than the terminal. For example, terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.

The communication method provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 4 and achieve the same technical effect. To avoid duplication, it will not be described again here.

Optionally, as shown in Figure 7, this embodiment of the present application also provides a communication device 800, which includes a processor 801 and a memory 802. The memory 802 stores programs or instructions that can be run on the processor 801, for example. , when the communication device 800 is a terminal, when the program or instruction is executed by the processor 801, each step of the above communication method embodiment is implemented, and the same technical effect can be achieved. When the communication device 800 is a network-side device, when the program or instruction is executed by the processor 801, each step of the above communication method embodiment is implemented, and the same technical effect can be achieved. To avoid duplication, the details are not repeated here.

Embodiments of the present application also provide a terminal, including a processor and a communication interface. The communication interface is used to initiate a session release process, and after the session release process is completed, initiate a session establishment process and an IMS registration process. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.

Specifically, FIG. 8 is a schematic diagram of the hardware structure of a UE that implements an embodiment of the present application.

The UE is a first UE, and the first UE 100 includes but is not limited to: radio frequency unit 101, network module 102, audio output unit 103, input unit 104, sensor 105, display unit 106, user input unit 107, at least some components of the interface unit 108, the memory 109, the processor 110, etc.

Those skilled in the art can understand that the first UE 100 may also include a power supply (such as a battery) that supplies power to various components. The power supply may be logically connected to the processor 110 through a power management system, thereby managing charging, discharging, and function through the power management system. Consumption management and other functions. The terminal structure shown in FIG. 8 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.

It should be understood that in the embodiment of the present application, the input unit 104 may include a graphics processing unit (Graphics Processing Unit, GPU) 1041 and a microphone 1042. The graphics processor 1041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras). The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 107 includes a touch panel 1071 and at least one of other input devices 1072 . Touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.

In this embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 101 can transmit it to the processor 110 for processing; in addition, the radio frequency unit 101 can send uplink data to the network side device. Generally, the radio frequency unit 101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

Memory 109 may be used to store software programs or instructions as well as various data. The memory 109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc. Additionally, memory 109 may include volatile memory or nonvolatile memory, or memory 109 may include both volatile and nonvolatile memory. Among them, non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM). Memory 109 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 110 may include one or more processing units; optionally, the processor 110 integrates an application processor and Modem processor, wherein the application processor mainly processes operations related to the operating system, user interface and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the above-mentioned modem processor may not be integrated into the processor 110.

It includes a processor 110; the processor 110 is configured to initiate a session release process when the first condition is met after the communication of the first IMS service between the first UE and the second UE is completed. The session release process is used to release the first session, which is used to transmit the above-mentioned first IMS service; the above-mentioned processor 110 is also used to initiate a session establishment process and an IMS registration process after the above-mentioned session release process is completed. The above-mentioned session establishment process uses After establishing the second session, the second session is used to transmit the second IMS service.

Optionally, in this embodiment of the present application, the above-mentioned first condition includes at least one of the following:

After the first UE sends the session modification request, a rejection message sent by the network side device is received, where the rejection message is used to reject the session modification;

The first UE detects that the session modification command sent by the network side device is incorrect;

Optionally, in this embodiment of the present application, the reason value contained in the above rejection message is a first value; the first value is represented by Indicates the reason for denying the above session modification request.

Optionally, in an embodiment of the present application, the first UE detects that the session modification command sent by the network side device is incorrect, including: the first UE detects that the session modification command does not include QoS rule information corresponding to the dedicated bearer used to transmit the IMS service in the first session.

Optionally, in an embodiment of the present application, after the first UE sends an IMS service request to the fifth UE, the first UE receives a response message indicating an error, which includes: after the first UE sends the IMS service request to the fifth UE, the first UE receives a response message indicating an error, and the process occurs M times, where M is a positive integer.

Optionally, in an embodiment of the present application, after the first UE receives the IMS service request sent by the sixth UE, the first UE receives a call cancellation message, which also includes: after the first UE receives the IMS service request sent by the sixth UE, the first UE receives a call cancellation message and a session modification command, and the session modification command is used to delete the dedicated bearer used to transmit the above-mentioned IMS service in the above-mentioned first session.

In the electronic device provided in the embodiment of the present application, after the communication of the first IMS service between the first UE and the second UE ends, if the first condition is met, the first UE initiates a session release process, the session release process is used to release the first session, the first session is used to transmit the first IMS service; after the session release process is completed, a session establishment process and an IMS registration process are initiated, the session establishment process is used to establish a second session, the second session is used to transmit the second IMS service. In this way, after the first UE and the second UE end the IMS service, the first session between the first UE and the second UE is released if the first condition is met, so that when the dedicated bearer corresponding to the IMS service is not successfully deleted, the first UE can successfully establish a new session and IMS registration during the next call.

Embodiments of the present application also provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, each process of the above communication method embodiment is implemented and the same can be achieved. To avoid repetition, the technical effects will not be repeated here.

Wherein, the processor is the processor in the terminal described in the above embodiment. the readable storage medium, Including computer-readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disks or optical disks, etc.

An embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement each of the above communication method embodiments. The process can achieve the same technical effect. To avoid repetition, it will not be described again here.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

Embodiments of the present application further provide a computer program/program product. The computer program/program product is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the above communication method embodiment. Each process can achieve the same technical effect. To avoid duplication, it will not be described again here.

An embodiment of the present application also provides a communication system, including: a terminal and a network-side device. The terminal can be used to perform the steps of the communication method as described above.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

A method of communication including:

After the communication of the first multimedia subsystem IMS service between the first user equipment UE and the second UE ends, if the first condition is met, the first UE initiates a session release process. The session release process is In releasing the first session, the first session is used to transmit the first IMS service;

After the session release process is completed, a session establishment process and an IMS registration process are initiated. The session establishment process is used to establish a second session, and the second session is used to transmit the second IMS service.
The method according to claim 1, wherein the first condition comprises at least one of the following:

After the first UE sends a first goodbye message, the session modification command is not received. The first goodbye message is used to end the communication of the first IMS service between the first UE and the second UE. ;

After the first UE receives the second goodbye message sent by the second UE, the session modification command is not received. The second goodbye message is used to end the session between the first UE and the second UE. Communication of the first IMS service;

After the first UE sends a session modification request, a rejection message sent by the network side device is received, where the rejection message is used to reject the session modification;

The first UE detects that the session modification command sent by the network side device is incorrect;

When the first UE sends an IMS service request to the third UE, a dedicated bearer exists for transmitting the IMS service;

When the first UE receives the IMS service request sent by the fourth UE, there is a dedicated bearer for transmitting the IMS service;

After the first UE sends the IMS service request to the fifth UE, the first UE receives a response message indicating an error;

After the first UE receives the IMS service request sent by the sixth UE, the first UE receives the call cancellation message;

Wherein, the session modification command is used to delete the dedicated bearer used to transmit the IMS service in the first session;

The session modification request is used to delete a dedicated bearer used to transmit the IMS service in the first session.
The method of claim 2, wherein after the first UE sends the first goodbye message, no session modification command is received, including:

The session modification command is not received within the first period of time after the first UE sends the first goodbye message.
The method of claim 2, wherein after the first UE receives the second goodbye message sent by the second UE, no session modification command is received, including:

The session modification command is not received within a second period of time after the first UE receives the second goodbye message sent by the second UE.
The method according to claim 2, wherein the reason value contained in the rejection message is a first value; the first value is used to indicate the reason for rejecting the session modification request.
The method according to claim 2, wherein the first UE detects that the session modification command sent by the network side device is incorrect, including:

The first UE detects that the session modification command does not include quality of service QoS rule information corresponding to the dedicated bearer used to transmit the IMS service in the first session.
The method according to claim 2, wherein the existence of a dedicated bearer for transmitting the IMS service includes:

There is a data radio bearer for transmitting the IMS service.
The method of claim 2, wherein the response message indicating an error is a first message, and the first message includes information indicating insufficient bearer resources.
The method according to claim 2, wherein after the first UE sends the IMS service request to the fifth UE, the first UE receives a response message indicating an error, including:

After the first UE sends an IMS service request to the fifth UE, the first UE receives a response message indicating an error and a session modification command. The session modification command is used to delete the username used in the first session. Dedicated bearer for transmitting the IMS service.
The method according to claim 2, wherein after the first UE sends the IMS service request to the fifth UE, the first UE receives a response message indicating an error, further comprising:

After the first UE sends the IMS service request to the fifth UE, the process of the first UE receiving a response message indicating an error occurs M times, where M is a positive integer.
The method according to claim 2, wherein after the first UE receives the IMS service request sent by the sixth UE, the first UE receives the call cancellation message, further comprising:

After the first UE receives the IMS service request sent by the sixth UE, the first UE receives a call cancellation message and a session modification command. The session modification command is used to delete the transmission information in the first session. Dedicated bearer of the IMS service.
The method according to claim 2, wherein after the first UE receives the IMS service request sent by the sixth UE, the first UE receives the call cancellation message, further comprising:

After the first UE receives the IMS service request sent by the sixth UE, the process of receiving the call cancellation message occurs N times, where N is a positive integer.
The method according to any one of claims 1 to 12, comprising:

The IMS service includes at least one of the following:

IMS voice call service;

IMS video call service.
The method according to any one of claims 1 to 12, comprising:

The first session includes at least one of the following:

Protocol Data Unit PDU session,

Packet data network PDN connection;

The bearer includes at least one of the following:

QoS flows;

Evolved Packet System EPS bearer.
A voice communication device, including: a processing module;

The processing module is configured to initiate a session release process when the first condition is met after the communication of the first IMS service between the first UE and the second UE is completed. The session release process is used to release the first session. , the first session is used to transmit the first IMS service;

The processing module is also configured to initiate a session establishment process and a multimedia subsystem IMS registration process after the session release process is completed. The session establishment process is used to establish a second session, and the second session is used to transmit the second session. 2. IMS business.
The device of claim 15, wherein the first condition includes at least one of the following:

After the first UE sends a first goodbye message, no session modification command is received, the first goodbye message being used to terminate communication of the first IMS service between the first UE and the second UE;

After the first UE receives a second goodbye message sent by the second UE, no session modification command is received, the second goodbye message being used to terminate communication of the first IMS service between the first UE and the second UE;

After the first UE sends a session modification request, a rejection message sent by the network side device is received, where the rejection message is used to reject the session modification;

The first UE detects that the session modification command sent by the network side device is incorrect;

When the first UE sends an IMS service request to the third UE, a dedicated bearer exists for transmitting the IMS service;

When the first UE receives the IMS service request sent by the fourth UE, there is a dedicated bearer for transmitting the IMS service;

After the first UE sends the IMS service request to the fifth UE, the first UE receives a response message indicating an error;

After the first UE receives the IMS service request sent by the sixth UE, the first UE receives the call cancellation message;

Wherein, the session modification command is used to delete the dedicated bearer used to transmit the IMS service in the first session;

The session modification request is used to delete the dedicated bearer used to transmit the IMS service in the first session.
The apparatus of claim 16, wherein after the first UE sends the first goodbye message, no session modification command is received, including:

The session modification command is not received within the first period of time after the first UE sends the first goodbye message.
The apparatus according to claim 16, wherein after the first UE receives the second goodbye message sent by the second UE, no session modification command is received, including:

The session modification command is not received within a second period of time after the first UE receives the second goodbye message sent by the second UE.
The apparatus according to claim 16, wherein the reason value contained in the rejection message is a first value; the first value is used to indicate the reason for rejecting the session modification request.
The apparatus according to claim 16, wherein the first UE detects that the session modification command sent by the network side device is incorrect, including:

The first UE detects that the session modification command does not include QoS rule information corresponding to the dedicated bearer used to transmit the IMS service in the first session.
The apparatus according to claim 16, wherein the existence of a dedicated bearer for transmitting the IMS service includes:

There is a data radio bearer for transmitting the IMS service.
The device according to claim 16, wherein the response message for indicating an error is a first message, and the first message contains information about insufficient bearer resources.
The apparatus according to claim 16, wherein after the first UE sends the IMS service request to the fifth UE, the first UE receives a response message indicating an error, including:

After the first UE sends an IMS service request to the fifth UE, the first UE receives a response message indicating an error and a session modification command. The session modification command is used to delete the username used in the first session. Dedicated bearer for transmitting the IMS service.
The apparatus according to claim 16, wherein after the first UE sends the IMS service request to the fifth UE, the first UE receives a response message indicating an error, further comprising:

After the first UE sends the IMS service request to the fifth UE, a process in which the first UE receives a response message indicating an error occurs M times, where M is a positive integer.
The device according to claim 16, wherein after the first UE receives the IMS service request sent by the sixth UE, the first UE receives a call cancellation message, further comprising:

After the first UE receives the IMS service request sent by the sixth UE, the first UE receives a call cancellation message and a session modification command. The session modification command is used to delete the transmission information in the first session. Dedicated bearer of the IMS service.
The device according to claim 16, wherein after the first UE receives the IMS service request sent by the sixth UE, the first UE receives a call cancellation message, further comprising:

After the first UE receives the IMS service request sent by the sixth UE, the process of receiving the call cancellation message occurs N times, where N is a positive integer.
The device according to any one of claims 15 to 26, comprising:

The IMS service includes at least one of the following:

IMS voice call service;

IMS video call service.
The device according to any one of claims 15 to 26, comprising:

The first session includes at least one of the following:

PDU session,

PDN connection;

The bearer includes at least one of the following:

QoS flow;

EPS load-bearing.
A user equipment UE, where the UE is a first UE, including a processor and a memory. The memory stores programs or instructions that can be run on the processor. The program or instructions are implemented when executed by the processor. The steps of the communication method according to any one of claims 1 to 14.
A readable storage medium on which a program or instructions are stored, and when the program or instructions are executed by a processor, the steps of the communication method according to any one of claims 1 to 14 are implemented.
A chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the communication method according to any one of claims 1 to 14 A step of.